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Finding the Fourth Proportional to 6,804.72, 10,203.92 and 3,994.40

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Solution

The fourth proportional to 6,804.72, 10,203.92 and 3,994.40 is: 5,989.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,804.72 : 10,203.92 = 3,994.40 : x
  2. Step 2: Convert to fraction form
    6,804.72/10,203.92 = 3,994.40/x
  3. Step 3: Cross multiply
    6,804.72x = 10,203.92 × 3,994.40
  4. Step 4: Simplify right side
    6,804.72x = 40,758,538.05
  5. Step 5: Solve for x
    x = 40,758,538.05/6,804.72
  6. Step 6: Final answer
    x = 5,989.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.